scholarly journals Physiological Responses of Salinized Fenugreek (Trigonellafoenum-graecum L.) Plants to Foliar Application of Salicylic Acid

Plants ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 657
Author(s):  
Reda E. Abdelhameed ◽  
Arafat Abdel Hamed Abdel Latef ◽  
Rania S. Shehata
Keyword(s):  
Salicylic Acid ◽  
Salt Stress ◽  
Foliar Application ◽  
Shikimic Acid ◽  
Plant Tolerance ◽  
Physiological Mechanisms ◽  
Content Index ◽  
Malondialdehyde Content ◽  
Total Free Amino Acids ◽  
The Impact

Considering the detrimental effects of salt stress on the physiological mechanisms of plants in terms of growth, development and productivity, intensive efforts are underway to improve plant tolerance to salinity. Hence, an experiment was conducted to assess the impact of the foliar application of salicylic acid (SA; 0.5 mM) on the physiological traits of fenugreek (Trigonellafoenum-graecum L.) plants grown under three salt concentrations (0, 75, and 150 mM NaCl). An increase in salt concentration generated a decrease in the chlorophyll content index (CCI); however, the foliar application of SA boosted the CCI. The malondialdehyde content increased in salt-stressed fenugreek plants, while a reduction in content was observed with SA. Likewise, SA application induced an accumulation of proline, total phenolics, and flavonoids. Moreover, further increases in total free amino acids and shikimic acid were observed with the foliar application of SA, in either control or salt-treated plants. Similar results were obtained for ascorbate peroxidase, peroxidase, polyphenol oxidase, and catalase with SA application. Hence, we concluded that the foliar application of SA ameliorates salinity, and it is a growth regulator that improves the tolerance of fenugreek plants under salt stress.

scholarly journals Effect of Salt Stress and Foliar Application of Salicylic Acid on Morphological, Biochemical, Anatomical, and Productivity Characteristics of Cowpea (Vigna unguiculata L.) Plants

Plants ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 115
Author(s):  
Ahmed M. El-Taher ◽  
Hany S. Abd El-Raouf ◽  
Nahid A. Osman ◽  
Samah N. Azoz ◽  
Magdy A. Omar ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Salt Stress ◽  
Vigna Unguiculata ◽  
Foliar Application ◽  
Chemical Constituents ◽  
Anatomical Structure ◽  
Salt Stress Tolerance ◽  
Growing Seasons ◽  
Stems And Leaves ◽  
The Impact

The present study aimed to investigate the impact of salinity on vegetative growth, chemical constituents, and yields of cowpeas (Vigna unguiculata) and the possible benefits of salicylic acid (SA) on these plants after damage from salinity. To achieve these objectives, two pot experiments were carried out at the Faculty of Agriculture, Al-Azhar University, Egypt, during the two growing seasons of 2019 and 2020. The results revealed that salinity significantly decreased, and SA treatment substantially increased the plant height, number of compound leaves, number of internodes per plant, fresh weights of leaves and stems, productivity, photosynthetic pigments content, and concentrations of nitrogen (N), phosphorus (P), and potassium (K) of the cowpea plants compared with the control. The anatomical structure of stems and leaves of the plants were also investigated, and it was found that positive variations in the anatomical structure of the median portion of the main stems and blades of mature foliage leaves were detected in the stressed and SA-treated plants. In conclusion, SA treatment increased the salt stress tolerance of cowpea plants by improving the morphological and physiological attributes of the plants.

scholarly journals EFFECT OF POLYETHYLENE GLYCOL AND SALICYLIC ACID ON SOME VEGETATIVE GROWTH TRAITS OF DATE PALM TISSUE CULTURE DERIVED PLANTS

2016 ◽  
Vol 47 (6) ◽  
Author(s):  
Khierallah & et al
Keyword(s):  
Salicylic Acid ◽  
Polyethylene Glycol ◽  
Vegetative Growth ◽  
Dry Matter ◽  
Date Palm ◽  
Foliar Application ◽  
Growth Traits ◽  
Research Station ◽  
The Impact ◽  
Nitrogen Percentage

This research was conducted in the greenhouse of Al-Rabee Research Station of the Department of Horticulture, Ministry of Agriculture for the 2011-2012 season in order to examine the effect of foliar application of various combinations of polyethylene glycol and salicylic acid levels on some vegetative growth traits of date palm tissue cultured derived plants.The concentrations of polyethylene (zero, 20 and 40 mg.L-1) and salicylic acid (zero, 50 and 100mg.L-1). The experiment carried out using randomized complete design and factorial in three replications. The results showed that increasing the concentration of polyethylene led to increased paperwork content of chlorophyll B and the total and received an increase the nitrogen percentage in the papers. The impact of the concentration of acid, salicylic has said the results of a significant increase in chlorophyll, A, B and macro as well as an increase in the percentage of dry matter and an increase in the percentage of nitrogen in securities The impact of interaction between the polyethylene acid, salicylic, the results showed that there was a significant increase in most the traits in study.

scholarly journals Improving salinity tolerance in Salvia officinalis L. by foliar application of salicylic acid

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Fatima Zohra Es-sbihi ◽  
Zakaria Hazzoumi ◽  
Abderrahim Aasfar ◽  
Khalid Amrani Joutei
Keyword(s):  
Salicylic Acid ◽  
Salt Stress ◽  
Plant Growth ◽  
Essential Oils ◽  
Foliar Application ◽  
Salvia Officinalis ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Chlorophyll Pigments ◽  
Nacl Toxicity

Abstract Background Higher absorption and translocation of sodium (Na) and chlorine (Cl) ions in plant tissue can lead to serious physiological and biochemical changes. However, salicylic acid (SA) is a natural signaling molecule responsible for the induction of environmental stress tolerance in plants. Spraying SA could provide protection against several types of stress such as salinity. This study aimed to show the influence of SA spraying (0.5 and 1 mM) on the damaging effects of NaCl toxicity (150 mM) in Salvia officinalis L. plants. Results The results showed that salinity strongly inhibited the growth of aerial and root parts and this inhibition was accompanied by a significant decrease in the production of chlorophyll pigments (by 63%). There was also a significant accumulation of Na, mainly in the roots. This accumulation of Na+ ions was accompanied by a decrease of calcium (Ca), potassium (K) and phosphorus (P) concentrations. However, SA mainly at 0.5 mM, greatly improved plant growth, essential oils and chlorophyll pigments synthesis. Besides, SA led to a decrease in Na content and an improvement in Ca, K and P content in the leaves and roots. Salt stress decreased the essential oil yield from 1.2% (control) to 0.4% (NaCl). Furthermore, gas chromatography–mass spectrometry analysis of essential oils exhibited that the 1,8-cineol, α-thujone, and camphor were identified as the main components of essential oils under all treatments. However, we noted in stressed plant treated or not with SA the appearance of the new majority compound thujanone. Salt stress decreased the major compounds content. SA spray under stress condition increased the content of major compounds compared to stressed plants untreated with SA. The histological study in scanning electron microscopy showed the peltate glands density decreased strongly under NaCl toxicity. However, SA application on stressed plants increased peltate glands density. On the other hand, the glands of stressed plants often show certain anomalies in the morphology: the first anomaly observed was the presence of glandular structures characterized by deformations in the form of small protuberances located on the head of the gland. The second, a less common abnormality is the morphological change in certain glands that change from a spherical to an ovoid shape. On another hand, all these anomalies were not detected in stressed plants sprayed with SA. Therefore, the absence of these anomalies under the effect of SA showed the repairing effect of this growth regulator. Conclusion The findings of the present work suggest that spraying of SA may be useful for improving the plant growth in NaCl-contaminated areas.

scholarly journals Alleviation Of Nacl Stress In Summer Squash ‘Eskandrani’ By Foliar Application Of Salicylic Acid

2014 ◽  
Vol 22 (2) ◽  
pp. 131-137 ◽  
Author(s):  
Mohammed Wasfy Mohammed Elwan ◽  
Rewaa Salah Ahmed El-Shatoury
Keyword(s):  
Salicylic Acid ◽  
Salt Stress ◽  
Foliar Application ◽  
Nacl Stress ◽  
Fresh Weight ◽  
Potassium Accumulation ◽  
Sodium Accumulation ◽  
Aerial Parts ◽  
Summer Squash ◽  
Negative Effect

AbstractThe experiment was performed to assess the possibility of overcoming NaCl salinity stress by foliar sprays of summer squash ‘Eskandrani’ with salicylic acid (SA) at the concentration of 10-6 M. NaCl treatment caused reduction of shoot fresh weight, leaf number per plant, fruit yield, concentrations of potassium in aerial parts, and the concentration of chlorophyll in leaves. Plants grown under salt stress conditions had higher shoot sodium concentrations than plants untreated with NaCl. Foliar application of SA ameliorated partly the negative effect of NaCl treatment. The beneficial effect of SA was also observed in non-stressed plants, increasing the shoot potassium accumulation and leaf photosynthetic pigments status, and decreasing sodium accumulation in shoots.

scholarly journals Exogenous melatonin on Physiological and Yield Traits of Cassava (Manihot esculenta Crantz) under Salt Stress

2021 ◽  
Vol 108 ◽  
pp. 1-4
Author(s):  
Bhavithra S.M. ◽  
◽  
Kalarani M.K. ◽  
Senthil A ◽  
Kavitha P.S. ◽  
...  
Keyword(s):  
Salt Stress ◽  
Stress Condition ◽  
Foliar Application ◽  
Growth Control ◽  
Foliar Spray ◽  
Yield Potential ◽  
Manihot Esculenta Crantz ◽  
Salt Stress Condition ◽  
The Impact ◽  
Absolute Control

The present investigation to evaluate the impact of melatonin on physiological, biochemical characters and yield potential of cassava under salt stress condition. The present study was carried out in cassava variety Sree Athulya with nine treatments under 120mM NaCl salt stress condition. Different treatments viz., sett treatment and foliar application of 100 ppm melatonin was done at 30 and 60 DAP of the crop growth. Control (salt stress + no melatonin) and absolute control (no stress and melatonin) also maintained for comparison purpose. The salt stress of 120 mM NaCl was imposed from day one to120 days. Observations done on 45, 75 and 135 days after planting revealed that foliar spray of 100 ppm melatonin at 30 days after planting recorded percent increase of 33.56 in photosynthetic rate, 37.28 in stomatal conductance, 13.60 in transpiration rate and sett treatment plus foliar spray at 30 and 60 days after planting showed maximum osmotic adjustment, osmotic potential, proline (16.54 %) and soluble protein content (10.32 %). The melatonin treated plants are efficient in producing higher yield than untreated one under salt stress.

scholarly journals Salicylic acid relieves the effect of saline stress on soursop morphysiology

2021 ◽  
Vol 45 ◽  
Author(s):  
André Alisson Rodrigues da Silva ◽  
Geovani Soares de Lima ◽  
Carlos Alberto Vieira de Azevedo ◽  
Hans Raj Gheyi ◽  
Allesson Ramos de Souza ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Salt Stress ◽  
Foliar Application ◽  
Block Design ◽  
Co2 Assimilation ◽  
Saline Stress ◽  
Assimilation Rate ◽  
Randomized Block Design ◽  
Degenerative Disorders ◽  
Relative Water

ABSTRACT The cultivation of soursop has increased in recent years due to the advance of agribusiness and due to its use by the pharmaceutical industry. As a source of vitamin C, calcium, carbohydrates and antioxidant substances, soursop helps to protect the human body against oxidative stress, acting in the prevention of a series of chronic degenerative disorders. In this context, the objective of present study was to evaluate the effects of foliar sprays with salicylic acid to mitigate the effects of salt stress on the morphophysiology of soursop. The study was conducted in a greenhouse, in a randomized block design and a 5 × 4 factorial arrangement, with five levels of electrical conductivity of irrigation water - ECw (0.8-control; 1.6; 2.4; 3.2 and 4.0 dS m-1) and four concentrations of salicylic acid - SA (0; 1.2; 2.4 and 3.6 mM), with three replicates. Foliar application of SA at concentrations between 1.2 and 1.6 mM mitigated the effects of salt stress on stomatal conductance, CO2 assimilation rate, transpiration and instantaneous carboxylation efficiency of soursop at 480 days after transplanting. Spraying with SA at concentrations between 1.3 and 1.6 mM induced acclimatization to salt stress in soursop plants, since the percentage of intercellular electrolyte leakage was reduced and the growth was favored by the application of SA, even when exposed to salinity. Irrigation with ECw above 0.8 dS m-1 reduced the relative water content in the leaves of soursop cv. Morada Nova.

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